BackgroundThe aim of this prospective randomized study were to compare outcomes between immediate laparoscopic cholecystectomy(LC) and same admission delayed LC in patients with acute cholecystitis. In addition, determine the relation between oxidative stress markers and complication rates in the patients with AC. Patients and MethodsThis study included 64 patients with AC who were randomly divided into two groups. Patients in Group 1 (n = 32) were immediately administered LC, while in Group 2 (n = 32) patients underwent transient LC following medical treatment. All patients were operated on their first hospitalizationResultsNo statistically signiﬁcant diﬀerences were observed between the groups for the comparison of complications, conversion rates or operation durations(p > 0.05). The length of postoperative hospital stay was found to be signiﬁcantly shorter in group 1 compared to group 2(1.75 vs 2.93 days; p = 0.024). Only the total antioxidant status result was significantly higher in group 1(p = 0.017) but, the finding was not correlated with complications.ConclusionsLC for AC was performed during the first admission was found to be safe, even beyond 72 hours following symptom onset. Pre-operative oxidative stress markers did not correlate with the complication rates.